Yog'ochni hosil bo’lishi uchun zarur bo'lgan karbonat angidrid miqdorini aniqlash


Uy ro‘zg‘or uchun chiqindilardan foydalanasizmi?
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Kimyoviy moddalar. 

Sizning oilangiz turli hil maqsadlar uchun qanday kimyoviy moddalardan 
foydalanashadi;
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
Ular qaerda saqlanadi?

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